... 125 KHz/HF 13.56MHzAvailable Chip:125KHz chips:EM4100, EM4102, EM4450, TK4100, T5567, Hitag1, Hitag2, HitagS13.56MHz chips:NXP Mifare1 S50 ... park management, ID Authentication, attendance management, card payment, product labeling. EM4450 ABS RFID key fob for attendance management